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Rigidity of diagonally embedded triangle groups
- Part of
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- Journal:
- Canadian Mathematical Bulletin / Volume 64 / Issue 3 / September 2021
- Published online by Cambridge University Press:
- 20 August 2020, pp. 560-579
- Print publication:
- September 2021
-
- Article
- Export citation
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We show local rigidity of hyperbolic triangle groups generated by reflections in pairs of n-dimensional subspaces of
$\mathbb {R}^{2n}$
obtained by composition of the geometric representation in
$\mathsf {PGL}(2,\mathbb {R})$
with the diagonal embeddings into
$\mathsf {PGL}(2n,\mathbb {R})$
and
$\mathsf {PSp}^\pm (2n,\mathbb {R})$
.
